forgejo/services/pull/pull.go
zeripath 8598356df1
Refactor and tidy-up the merge/update branch code (#22568)
The merge and update branch code was previously a little tangled and had
some very long functions. The functions were not very clear in their
reasoning and there were deficiencies in their logging and at least one
bug in the handling of LFS for update by rebase.

This PR substantially refactors this code and splits things out to into
separate functions. It also attempts to tidy up the calls by wrapping
things in "context"s. There are also attempts to improve logging when
there are errors.

Signed-off-by: Andrew Thornton <art27@cantab.net>

---------

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: delvh <dev.lh@web.de>
2023-03-07 15:07:35 -05:00

831 lines
26 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package pull
import (
"context"
"fmt"
"io"
"os"
"regexp"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
git_model "code.gitea.io/gitea/models/git"
issues_model "code.gitea.io/gitea/models/issues"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/container"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/notification"
"code.gitea.io/gitea/modules/process"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/sync"
"code.gitea.io/gitea/modules/util"
issue_service "code.gitea.io/gitea/services/issue"
)
// TODO: use clustered lock (unique queue? or *abuse* cache)
var pullWorkingPool = sync.NewExclusivePool()
// NewPullRequest creates new pull request with labels for repository.
func NewPullRequest(ctx context.Context, repo *repo_model.Repository, pull *issues_model.Issue, labelIDs []int64, uuids []string, pr *issues_model.PullRequest, assigneeIDs []int64) error {
if err := TestPatch(pr); err != nil {
return err
}
divergence, err := GetDiverging(ctx, pr)
if err != nil {
return err
}
pr.CommitsAhead = divergence.Ahead
pr.CommitsBehind = divergence.Behind
if err := issues_model.NewPullRequest(ctx, repo, pull, labelIDs, uuids, pr); err != nil {
return err
}
for _, assigneeID := range assigneeIDs {
if err := issue_service.AddAssigneeIfNotAssigned(pull, pull.Poster, assigneeID); err != nil {
return err
}
}
pr.Issue = pull
pull.PullRequest = pr
// Now - even if the request context has been cancelled as the PR has been created
// in the db and there is no way to cancel that transaction we have to proceed - therefore
// create new context and work from there
prCtx, _, finished := process.GetManager().AddContext(graceful.GetManager().HammerContext(), fmt.Sprintf("NewPullRequest: %s:%d", repo.FullName(), pr.Index))
defer finished()
if pr.Flow == issues_model.PullRequestFlowGithub {
err = PushToBaseRepo(prCtx, pr)
} else {
err = UpdateRef(prCtx, pr)
}
if err != nil {
return err
}
mentions, err := issues_model.FindAndUpdateIssueMentions(ctx, pull, pull.Poster, pull.Content)
if err != nil {
return err
}
notification.NotifyNewPullRequest(prCtx, pr, mentions)
if len(pull.Labels) > 0 {
notification.NotifyIssueChangeLabels(prCtx, pull.Poster, pull, pull.Labels, nil)
}
if pull.Milestone != nil {
notification.NotifyIssueChangeMilestone(prCtx, pull.Poster, pull, 0)
}
// add first push codes comment
baseGitRepo, err := git.OpenRepository(prCtx, pr.BaseRepo.RepoPath())
if err != nil {
return err
}
defer baseGitRepo.Close()
compareInfo, err := baseGitRepo.GetCompareInfo(pr.BaseRepo.RepoPath(),
git.BranchPrefix+pr.BaseBranch, pr.GetGitRefName(), false, false)
if err != nil {
return err
}
if len(compareInfo.Commits) > 0 {
data := issues_model.PushActionContent{IsForcePush: false}
data.CommitIDs = make([]string, 0, len(compareInfo.Commits))
for i := len(compareInfo.Commits) - 1; i >= 0; i-- {
data.CommitIDs = append(data.CommitIDs, compareInfo.Commits[i].ID.String())
}
dataJSON, err := json.Marshal(data)
if err != nil {
return err
}
ops := &issues_model.CreateCommentOptions{
Type: issues_model.CommentTypePullRequestPush,
Doer: pull.Poster,
Repo: repo,
Issue: pr.Issue,
IsForcePush: false,
Content: string(dataJSON),
}
_, _ = issue_service.CreateComment(ops)
}
return nil
}
// ChangeTargetBranch changes the target branch of this pull request, as the given user.
func ChangeTargetBranch(ctx context.Context, pr *issues_model.PullRequest, doer *user_model.User, targetBranch string) (err error) {
pullWorkingPool.CheckIn(fmt.Sprint(pr.ID))
defer pullWorkingPool.CheckOut(fmt.Sprint(pr.ID))
// Current target branch is already the same
if pr.BaseBranch == targetBranch {
return nil
}
if pr.Issue.IsClosed {
return issues_model.ErrIssueIsClosed{
ID: pr.Issue.ID,
RepoID: pr.Issue.RepoID,
Index: pr.Issue.Index,
}
}
if pr.HasMerged {
return models.ErrPullRequestHasMerged{
ID: pr.ID,
IssueID: pr.Index,
HeadRepoID: pr.HeadRepoID,
BaseRepoID: pr.BaseRepoID,
HeadBranch: pr.HeadBranch,
BaseBranch: pr.BaseBranch,
}
}
// Check if branches are equal
branchesEqual, err := IsHeadEqualWithBranch(ctx, pr, targetBranch)
if err != nil {
return err
}
if branchesEqual {
return models.ErrBranchesEqual{
HeadBranchName: pr.HeadBranch,
BaseBranchName: targetBranch,
}
}
// Check if pull request for the new target branch already exists
existingPr, err := issues_model.GetUnmergedPullRequest(ctx, pr.HeadRepoID, pr.BaseRepoID, pr.HeadBranch, targetBranch, issues_model.PullRequestFlowGithub)
if existingPr != nil {
return issues_model.ErrPullRequestAlreadyExists{
ID: existingPr.ID,
IssueID: existingPr.Index,
HeadRepoID: existingPr.HeadRepoID,
BaseRepoID: existingPr.BaseRepoID,
HeadBranch: existingPr.HeadBranch,
BaseBranch: existingPr.BaseBranch,
}
}
if err != nil && !issues_model.IsErrPullRequestNotExist(err) {
return err
}
// Set new target branch
oldBranch := pr.BaseBranch
pr.BaseBranch = targetBranch
// Refresh patch
if err := TestPatch(pr); err != nil {
return err
}
// Update target branch, PR diff and status
// This is the same as checkAndUpdateStatus in check service, but also updates base_branch
if pr.Status == issues_model.PullRequestStatusChecking {
pr.Status = issues_model.PullRequestStatusMergeable
}
// Update Commit Divergence
divergence, err := GetDiverging(ctx, pr)
if err != nil {
return err
}
pr.CommitsAhead = divergence.Ahead
pr.CommitsBehind = divergence.Behind
if err := pr.UpdateColsIfNotMerged(ctx, "merge_base", "status", "conflicted_files", "changed_protected_files", "base_branch", "commits_ahead", "commits_behind"); err != nil {
return err
}
// Create comment
options := &issues_model.CreateCommentOptions{
Type: issues_model.CommentTypeChangeTargetBranch,
Doer: doer,
Repo: pr.Issue.Repo,
Issue: pr.Issue,
OldRef: oldBranch,
NewRef: targetBranch,
}
if _, err = issue_service.CreateComment(options); err != nil {
return fmt.Errorf("CreateChangeTargetBranchComment: %w", err)
}
return nil
}
func checkForInvalidation(ctx context.Context, requests issues_model.PullRequestList, repoID int64, doer *user_model.User, branch string) error {
repo, err := repo_model.GetRepositoryByID(ctx, repoID)
if err != nil {
return fmt.Errorf("GetRepositoryByIDCtx: %w", err)
}
gitRepo, err := git.OpenRepository(ctx, repo.RepoPath())
if err != nil {
return fmt.Errorf("git.OpenRepository: %w", err)
}
go func() {
// FIXME: graceful: We need to tell the manager we're doing something...
err := InvalidateCodeComments(ctx, requests, doer, gitRepo, branch)
if err != nil {
log.Error("PullRequestList.InvalidateCodeComments: %v", err)
}
gitRepo.Close()
}()
return nil
}
// AddTestPullRequestTask adds new test tasks by given head/base repository and head/base branch,
// and generate new patch for testing as needed.
func AddTestPullRequestTask(doer *user_model.User, repoID int64, branch string, isSync bool, oldCommitID, newCommitID string) {
log.Trace("AddTestPullRequestTask [head_repo_id: %d, head_branch: %s]: finding pull requests", repoID, branch)
graceful.GetManager().RunWithShutdownContext(func(ctx context.Context) {
// There is no sensible way to shut this down ":-("
// If you don't let it run all the way then you will lose data
// TODO: graceful: AddTestPullRequestTask needs to become a queue!
prs, err := issues_model.GetUnmergedPullRequestsByHeadInfo(repoID, branch, true)
if err != nil {
log.Error("Find pull requests [head_repo_id: %d, head_branch: %s]: %v", repoID, branch, err)
return
}
for _, pr := range prs {
log.Trace("Updating PR[%d]: composing new test task", pr.ID)
if pr.Flow == issues_model.PullRequestFlowGithub {
if err := PushToBaseRepo(ctx, pr); err != nil {
log.Error("PushToBaseRepo: %v", err)
continue
}
} else {
continue
}
AddToTaskQueue(pr)
comment, err := CreatePushPullComment(ctx, doer, pr, oldCommitID, newCommitID)
if err == nil && comment != nil {
notification.NotifyPullRequestPushCommits(ctx, doer, pr, comment)
}
}
if isSync {
requests := issues_model.PullRequestList(prs)
if err = requests.LoadAttributes(); err != nil {
log.Error("PullRequestList.LoadAttributes: %v", err)
}
if invalidationErr := checkForInvalidation(ctx, requests, repoID, doer, branch); invalidationErr != nil {
log.Error("checkForInvalidation: %v", invalidationErr)
}
if err == nil {
for _, pr := range prs {
if newCommitID != "" && newCommitID != git.EmptySHA {
changed, err := checkIfPRContentChanged(ctx, pr, oldCommitID, newCommitID)
if err != nil {
log.Error("checkIfPRContentChanged: %v", err)
}
if changed {
// Mark old reviews as stale if diff to mergebase has changed
if err := issues_model.MarkReviewsAsStale(pr.IssueID); err != nil {
log.Error("MarkReviewsAsStale: %v", err)
}
}
if err := issues_model.MarkReviewsAsNotStale(pr.IssueID, newCommitID); err != nil {
log.Error("MarkReviewsAsNotStale: %v", err)
}
divergence, err := GetDiverging(ctx, pr)
if err != nil {
log.Error("GetDiverging: %v", err)
} else {
err = pr.UpdateCommitDivergence(ctx, divergence.Ahead, divergence.Behind)
if err != nil {
log.Error("UpdateCommitDivergence: %v", err)
}
}
}
notification.NotifyPullRequestSynchronized(ctx, doer, pr)
}
}
}
log.Trace("AddTestPullRequestTask [base_repo_id: %d, base_branch: %s]: finding pull requests", repoID, branch)
prs, err = issues_model.GetUnmergedPullRequestsByBaseInfo(repoID, branch)
if err != nil {
log.Error("Find pull requests [base_repo_id: %d, base_branch: %s]: %v", repoID, branch, err)
return
}
for _, pr := range prs {
divergence, err := GetDiverging(ctx, pr)
if err != nil {
if models.IsErrBranchDoesNotExist(err) && !git.IsBranchExist(ctx, pr.HeadRepo.RepoPath(), pr.HeadBranch) {
log.Warn("Cannot test PR %s/%d: head_branch %s no longer exists", pr.BaseRepo.Name, pr.IssueID, pr.HeadBranch)
} else {
log.Error("GetDiverging: %v", err)
}
} else {
err = pr.UpdateCommitDivergence(ctx, divergence.Ahead, divergence.Behind)
if err != nil {
log.Error("UpdateCommitDivergence: %v", err)
}
}
AddToTaskQueue(pr)
}
})
}
// checkIfPRContentChanged checks if diff to target branch has changed by push
// A commit can be considered to leave the PR untouched if the patch/diff with its merge base is unchanged
func checkIfPRContentChanged(ctx context.Context, pr *issues_model.PullRequest, oldCommitID, newCommitID string) (hasChanged bool, err error) {
prCtx, cancel, err := createTemporaryRepoForPR(ctx, pr)
if err != nil {
log.Error("CreateTemporaryRepoForPR %-v: %v", pr, err)
return false, err
}
defer cancel()
tmpRepo, err := git.OpenRepository(ctx, prCtx.tmpBasePath)
if err != nil {
return false, fmt.Errorf("OpenRepository: %w", err)
}
defer tmpRepo.Close()
// Find the merge-base
_, base, err := tmpRepo.GetMergeBase("", "base", "tracking")
if err != nil {
return false, fmt.Errorf("GetMergeBase: %w", err)
}
cmd := git.NewCommand(ctx, "diff", "--name-only", "-z").AddDynamicArguments(newCommitID, oldCommitID, base)
stdoutReader, stdoutWriter, err := os.Pipe()
if err != nil {
return false, fmt.Errorf("unable to open pipe for to run diff: %w", err)
}
if err := cmd.Run(&git.RunOpts{
Dir: prCtx.tmpBasePath,
Stdout: stdoutWriter,
PipelineFunc: func(ctx context.Context, cancel context.CancelFunc) error {
_ = stdoutWriter.Close()
defer func() {
_ = stdoutReader.Close()
}()
return util.IsEmptyReader(stdoutReader)
},
}); err != nil {
if err == util.ErrNotEmpty {
return true, nil
}
log.Error("Unable to run diff on %s %s %s in tempRepo for PR[%d]%s/%s...%s/%s: Error: %v",
newCommitID, oldCommitID, base,
pr.ID, pr.BaseRepo.FullName(), pr.BaseBranch, pr.HeadRepo.FullName(), pr.HeadBranch,
err)
return false, fmt.Errorf("Unable to run git diff --name-only -z %s %s %s: %w", newCommitID, oldCommitID, base, err)
}
return false, nil
}
// PushToBaseRepo pushes commits from branches of head repository to
// corresponding branches of base repository.
// FIXME: Only push branches that are actually updates?
func PushToBaseRepo(ctx context.Context, pr *issues_model.PullRequest) (err error) {
return pushToBaseRepoHelper(ctx, pr, "")
}
func pushToBaseRepoHelper(ctx context.Context, pr *issues_model.PullRequest, prefixHeadBranch string) (err error) {
log.Trace("PushToBaseRepo[%d]: pushing commits to base repo '%s'", pr.BaseRepoID, pr.GetGitRefName())
if err := pr.LoadHeadRepo(ctx); err != nil {
log.Error("Unable to load head repository for PR[%d] Error: %v", pr.ID, err)
return err
}
headRepoPath := pr.HeadRepo.RepoPath()
if err := pr.LoadBaseRepo(ctx); err != nil {
log.Error("Unable to load base repository for PR[%d] Error: %v", pr.ID, err)
return err
}
baseRepoPath := pr.BaseRepo.RepoPath()
if err = pr.LoadIssue(ctx); err != nil {
return fmt.Errorf("unable to load issue %d for pr %d: %w", pr.IssueID, pr.ID, err)
}
if err = pr.Issue.LoadPoster(ctx); err != nil {
return fmt.Errorf("unable to load poster %d for pr %d: %w", pr.Issue.PosterID, pr.ID, err)
}
gitRefName := pr.GetGitRefName()
if err := git.Push(ctx, headRepoPath, git.PushOptions{
Remote: baseRepoPath,
Branch: prefixHeadBranch + pr.HeadBranch + ":" + gitRefName,
Force: true,
// Use InternalPushingEnvironment here because we know that pre-receive and post-receive do not run on a refs/pulls/...
Env: repo_module.InternalPushingEnvironment(pr.Issue.Poster, pr.BaseRepo),
}); err != nil {
if git.IsErrPushOutOfDate(err) {
// This should not happen as we're using force!
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to ErrPushOfDate: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, gitRefName, err)
return err
} else if git.IsErrPushRejected(err) {
rejectErr := err.(*git.ErrPushRejected)
log.Info("Unable to push PR head for %s#%d (%-v:%s) due to rejection:\nStdout: %s\nStderr: %s\nError: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, gitRefName, rejectErr.StdOut, rejectErr.StdErr, rejectErr.Err)
return err
} else if git.IsErrMoreThanOne(err) {
if prefixHeadBranch != "" {
log.Info("Can't push with %s%s", prefixHeadBranch, pr.HeadBranch)
return err
}
log.Info("Retrying to push with %s%s", git.BranchPrefix, pr.HeadBranch)
err = pushToBaseRepoHelper(ctx, pr, git.BranchPrefix)
return err
}
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to Error: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, gitRefName, err)
return fmt.Errorf("Push: %s:%s %s:%s %w", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), gitRefName, err)
}
return nil
}
// UpdateRef update refs/pull/id/head directly for agit flow pull request
func UpdateRef(ctx context.Context, pr *issues_model.PullRequest) (err error) {
log.Trace("UpdateRef[%d]: upgate pull request ref in base repo '%s'", pr.ID, pr.GetGitRefName())
if err := pr.LoadBaseRepo(ctx); err != nil {
log.Error("Unable to load base repository for PR[%d] Error: %v", pr.ID, err)
return err
}
_, _, err = git.NewCommand(ctx, "update-ref").AddDynamicArguments(pr.GetGitRefName(), pr.HeadCommitID).RunStdString(&git.RunOpts{Dir: pr.BaseRepo.RepoPath()})
if err != nil {
log.Error("Unable to update ref in base repository for PR[%d] Error: %v", pr.ID, err)
}
return err
}
type errlist []error
func (errs errlist) Error() string {
if len(errs) > 0 {
var buf strings.Builder
for i, err := range errs {
if i > 0 {
buf.WriteString(", ")
}
buf.WriteString(err.Error())
}
return buf.String()
}
return ""
}
// CloseBranchPulls close all the pull requests who's head branch is the branch
func CloseBranchPulls(doer *user_model.User, repoID int64, branch string) error {
prs, err := issues_model.GetUnmergedPullRequestsByHeadInfo(repoID, branch, false)
if err != nil {
return err
}
prs2, err := issues_model.GetUnmergedPullRequestsByBaseInfo(repoID, branch)
if err != nil {
return err
}
prs = append(prs, prs2...)
if err := issues_model.PullRequestList(prs).LoadAttributes(); err != nil {
return err
}
var errs errlist
for _, pr := range prs {
if err = issue_service.ChangeStatus(pr.Issue, doer, "", true); err != nil && !issues_model.IsErrPullWasClosed(err) && !issues_model.IsErrDependenciesLeft(err) {
errs = append(errs, err)
}
}
if len(errs) > 0 {
return errs
}
return nil
}
// CloseRepoBranchesPulls close all pull requests which head branches are in the given repository, but only whose base repo is not in the given repository
func CloseRepoBranchesPulls(ctx context.Context, doer *user_model.User, repo *repo_model.Repository) error {
branches, _, err := git.GetBranchesByPath(ctx, repo.RepoPath(), 0, 0)
if err != nil {
return err
}
var errs errlist
for _, branch := range branches {
prs, err := issues_model.GetUnmergedPullRequestsByHeadInfo(repo.ID, branch.Name, false)
if err != nil {
return err
}
if err = issues_model.PullRequestList(prs).LoadAttributes(); err != nil {
return err
}
for _, pr := range prs {
// If the base repository for this pr is this repository there is no need to close it
// as it is going to be deleted anyway
if pr.BaseRepoID == repo.ID {
continue
}
if err = issue_service.ChangeStatus(pr.Issue, doer, "", true); err != nil && !issues_model.IsErrPullWasClosed(err) {
errs = append(errs, err)
}
}
}
if len(errs) > 0 {
return errs
}
return nil
}
var commitMessageTrailersPattern = regexp.MustCompile(`(?:^|\n\n)(?:[\w-]+[ \t]*:[^\n]+\n*(?:[ \t]+[^\n]+\n*)*)+$`)
// GetSquashMergeCommitMessages returns the commit messages between head and merge base (if there is one)
func GetSquashMergeCommitMessages(ctx context.Context, pr *issues_model.PullRequest) string {
if err := pr.LoadIssue(ctx); err != nil {
log.Error("Cannot load issue %d for PR id %d: Error: %v", pr.IssueID, pr.ID, err)
return ""
}
if err := pr.Issue.LoadPoster(ctx); err != nil {
log.Error("Cannot load poster %d for pr id %d, index %d Error: %v", pr.Issue.PosterID, pr.ID, pr.Index, err)
return ""
}
if pr.HeadRepo == nil {
var err error
pr.HeadRepo, err = repo_model.GetRepositoryByID(ctx, pr.HeadRepoID)
if err != nil {
log.Error("GetRepositoryByIdCtx[%d]: %v", pr.HeadRepoID, err)
return ""
}
}
gitRepo, closer, err := git.RepositoryFromContextOrOpen(ctx, pr.HeadRepo.RepoPath())
if err != nil {
log.Error("Unable to open head repository: Error: %v", err)
return ""
}
defer closer.Close()
var headCommit *git.Commit
if pr.Flow == issues_model.PullRequestFlowGithub {
headCommit, err = gitRepo.GetBranchCommit(pr.HeadBranch)
} else {
pr.HeadCommitID, err = gitRepo.GetRefCommitID(pr.GetGitRefName())
if err != nil {
log.Error("Unable to get head commit: %s Error: %v", pr.GetGitRefName(), err)
return ""
}
headCommit, err = gitRepo.GetCommit(pr.HeadCommitID)
}
if err != nil {
log.Error("Unable to get head commit: %s Error: %v", pr.HeadBranch, err)
return ""
}
mergeBase, err := gitRepo.GetCommit(pr.MergeBase)
if err != nil {
log.Error("Unable to get merge base commit: %s Error: %v", pr.MergeBase, err)
return ""
}
limit := setting.Repository.PullRequest.DefaultMergeMessageCommitsLimit
commits, err := gitRepo.CommitsBetweenLimit(headCommit, mergeBase, limit, 0)
if err != nil {
log.Error("Unable to get commits between: %s %s Error: %v", pr.HeadBranch, pr.MergeBase, err)
return ""
}
posterSig := pr.Issue.Poster.NewGitSig().String()
uniqueAuthors := make(container.Set[string])
authors := make([]string, 0, len(commits))
stringBuilder := strings.Builder{}
if !setting.Repository.PullRequest.PopulateSquashCommentWithCommitMessages {
message := strings.TrimSpace(pr.Issue.Content)
stringBuilder.WriteString(message)
if stringBuilder.Len() > 0 {
stringBuilder.WriteRune('\n')
if !commitMessageTrailersPattern.MatchString(message) {
stringBuilder.WriteRune('\n')
}
}
}
// commits list is in reverse chronological order
first := true
for i := len(commits) - 1; i >= 0; i-- {
commit := commits[i]
if setting.Repository.PullRequest.PopulateSquashCommentWithCommitMessages {
maxSize := setting.Repository.PullRequest.DefaultMergeMessageSize
if maxSize < 0 || stringBuilder.Len() < maxSize {
var toWrite []byte
if first {
first = false
toWrite = []byte(strings.TrimPrefix(commit.CommitMessage, pr.Issue.Title))
} else {
toWrite = []byte(commit.CommitMessage)
}
if len(toWrite) > maxSize-stringBuilder.Len() && maxSize > -1 {
toWrite = append(toWrite[:maxSize-stringBuilder.Len()], "..."...)
}
if _, err := stringBuilder.Write(toWrite); err != nil {
log.Error("Unable to write commit message Error: %v", err)
return ""
}
if _, err := stringBuilder.WriteRune('\n'); err != nil {
log.Error("Unable to write commit message Error: %v", err)
return ""
}
}
}
authorString := commit.Author.String()
if uniqueAuthors.Add(authorString) && authorString != posterSig {
authors = append(authors, authorString)
}
}
// Consider collecting the remaining authors
if limit >= 0 && setting.Repository.PullRequest.DefaultMergeMessageAllAuthors {
skip := limit
limit = 30
for {
commits, err := gitRepo.CommitsBetweenLimit(headCommit, mergeBase, limit, skip)
if err != nil {
log.Error("Unable to get commits between: %s %s Error: %v", pr.HeadBranch, pr.MergeBase, err)
return ""
}
if len(commits) == 0 {
break
}
for _, commit := range commits {
authorString := commit.Author.String()
if uniqueAuthors.Add(authorString) && authorString != posterSig {
authors = append(authors, authorString)
}
}
skip += limit
}
}
for _, author := range authors {
if _, err := stringBuilder.Write([]byte("Co-authored-by: ")); err != nil {
log.Error("Unable to write to string builder Error: %v", err)
return ""
}
if _, err := stringBuilder.Write([]byte(author)); err != nil {
log.Error("Unable to write to string builder Error: %v", err)
return ""
}
if _, err := stringBuilder.WriteRune('\n'); err != nil {
log.Error("Unable to write to string builder Error: %v", err)
return ""
}
}
return stringBuilder.String()
}
// GetIssuesLastCommitStatus returns a map of issue ID to the most recent commit's latest status
func GetIssuesLastCommitStatus(ctx context.Context, issues issues_model.IssueList) (map[int64]*git_model.CommitStatus, error) {
_, lastStatus, err := GetIssuesAllCommitStatus(ctx, issues)
return lastStatus, err
}
// GetIssuesAllCommitStatus returns a map of issue ID to a list of all statuses for the most recent commit as well as a map of issue ID to only the commit's latest status
func GetIssuesAllCommitStatus(ctx context.Context, issues issues_model.IssueList) (map[int64][]*git_model.CommitStatus, map[int64]*git_model.CommitStatus, error) {
if err := issues.LoadPullRequests(ctx); err != nil {
return nil, nil, err
}
if _, err := issues.LoadRepositories(ctx); err != nil {
return nil, nil, err
}
var (
gitRepos = make(map[int64]*git.Repository)
res = make(map[int64][]*git_model.CommitStatus)
lastRes = make(map[int64]*git_model.CommitStatus)
err error
)
defer func() {
for _, gitRepo := range gitRepos {
gitRepo.Close()
}
}()
for _, issue := range issues {
if !issue.IsPull {
continue
}
gitRepo, ok := gitRepos[issue.RepoID]
if !ok {
gitRepo, err = git.OpenRepository(ctx, issue.Repo.RepoPath())
if err != nil {
log.Error("Cannot open git repository %-v for issue #%d[%d]. Error: %v", issue.Repo, issue.Index, issue.ID, err)
continue
}
gitRepos[issue.RepoID] = gitRepo
}
statuses, lastStatus, err := getAllCommitStatus(gitRepo, issue.PullRequest)
if err != nil {
log.Error("getAllCommitStatus: cant get commit statuses of pull [%d]: %v", issue.PullRequest.ID, err)
continue
}
res[issue.PullRequest.ID] = statuses
lastRes[issue.PullRequest.ID] = lastStatus
}
return res, lastRes, nil
}
// getAllCommitStatus get pr's commit statuses.
func getAllCommitStatus(gitRepo *git.Repository, pr *issues_model.PullRequest) (statuses []*git_model.CommitStatus, lastStatus *git_model.CommitStatus, err error) {
sha, shaErr := gitRepo.GetRefCommitID(pr.GetGitRefName())
if shaErr != nil {
return nil, nil, shaErr
}
statuses, _, err = git_model.GetLatestCommitStatus(db.DefaultContext, pr.BaseRepo.ID, sha, db.ListOptions{})
lastStatus = git_model.CalcCommitStatus(statuses)
return statuses, lastStatus, err
}
// IsHeadEqualWithBranch returns if the commits of branchName are available in pull request head
func IsHeadEqualWithBranch(ctx context.Context, pr *issues_model.PullRequest, branchName string) (bool, error) {
var err error
if err = pr.LoadBaseRepo(ctx); err != nil {
return false, err
}
baseGitRepo, closer, err := git.RepositoryFromContextOrOpen(ctx, pr.BaseRepo.RepoPath())
if err != nil {
return false, err
}
defer closer.Close()
baseCommit, err := baseGitRepo.GetBranchCommit(branchName)
if err != nil {
return false, err
}
if err = pr.LoadHeadRepo(ctx); err != nil {
return false, err
}
var headGitRepo *git.Repository
if pr.HeadRepoID == pr.BaseRepoID {
headGitRepo = baseGitRepo
} else {
var closer io.Closer
headGitRepo, closer, err = git.RepositoryFromContextOrOpen(ctx, pr.HeadRepo.RepoPath())
if err != nil {
return false, err
}
defer closer.Close()
}
var headCommit *git.Commit
if pr.Flow == issues_model.PullRequestFlowGithub {
headCommit, err = headGitRepo.GetBranchCommit(pr.HeadBranch)
if err != nil {
return false, err
}
} else {
pr.HeadCommitID, err = baseGitRepo.GetRefCommitID(pr.GetGitRefName())
if err != nil {
return false, err
}
if headCommit, err = baseGitRepo.GetCommit(pr.HeadCommitID); err != nil {
return false, err
}
}
return baseCommit.HasPreviousCommit(headCommit.ID)
}